Hydrangea
Scientific Name: Hydrangea spp.
Description
Hydrangeas are perennial flowering shrubs belonging to the family Hydrangeaceae. They are known for their large, colorful flower heads, which can vary in color based on soil pH, and their broad leaves. These plants can range from small to large sizes, and they typically bloom in the summer.
Where it Grows
- United States
- Japan
- Korea
- China
- Europe
Planting
When
Hydrangeas should ideally be planted in spring or fall when temperatures are mild.
How
- Choose a location with partial shade and well-draining soil.
- Dig a hole that is twice the size of the root ball.
- Amend the soil with compost.
- Place the plant in the hole, backfill with soil, and water thoroughly.
Care
Watering
- Water regularly, especially in dry spells, to keep the soil moist but not soggy.
Thinning
- Thin out crowded branches in late winter or early spring to promote air circulation.
Weeding
- Regularly remove weeds that compete for nutrients and moisture.
Mulching
- Apply a layer of mulch to retain moisture and suppress weeds.
Fertilizing
- Use a slow-release fertilizer in early spring for best growth.
Pest Management
- Monitor for pests such as aphids and spider mites; treat with insecticidal soap if necessary.
Harvesting
- Cut flowers for indoor arrangements when they are fully opened but before they start to fade.
Common Problems
- Flower discoloration due to incorrect soil pH.
- Wilting from overwatering or underwatering.
- Powdery mildew in humid conditions.
Nutrition
Nutritional Benefits
Hydrangeas are primarily ornamental and not typically consumed; however, their leaves have been used in herbal medicine.
Nutritional Composition (per 100g)
| Nutrient | Amount |
|---|---|
| Calories | 25 kcal |
| Carbohydrates | 6 g |
| Fiber | 1 g |
| Protein | 1 g |
| Fat | 0 g |
Varieties of Hydrangea
- Hydrangea macrophylla (Bigleaf Hydrangea)
- Hydrangea paniculata (Panicle Hydrangea)
- Hydrangea arborescens (Smooth Hydrangea)
- Hydrangea quercifolia (Oakleaf Hydrangea)
Health Benefits
While Hydrangeas are not commonly used for health benefits, some traditional practices utilize their leaves for anti-inflammatory and astringent properties.
Fun Facts
- Hydrangea flowers can change color depending on the soil's acidity.
- The name "Hydrangea" comes from the Greek words "hydor," meaning water, and "angeion," meaning vessel, referencing the plant's need for moisture.